Dead link (404) in a runtime execution engine exception

[lambdageek]

Got this error message from a FullAOT test where I have some native code that wants to invoke a managed delegate.

Following the link https://developer.xamarin.com/guides/ios/advanced_topics/limitations/ gives a 404.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ExecutionEngineException: Attempting to JIT compile method '(wrapper native-to-managed) Tests/<>c__DisplayClass5_0:<test_0_setjmp_exn_handler>b__0 ()' while running in aot-only mode. See https://developer.xamarin.com/guides/ios/advanced_topics/limitations/ for more information.

  at (wrapper managed-to-native) System.Object.__icall_wrapper_mono_delegate_to_ftnptr(object)
  at (wrapper managed-to-native) Tests.mono_test_setjmp_and_call(Tests/VoidVoidDelegate,intptr&)
  at Tests.test_0_setjmp_exn_handler () [0x00023] in <16258fbbedad473992f15c8212374900>:0 
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <e1ccb1c8ff6b4a10b926c2520e3aa15d>:0 
   --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0004b] in <e1ccb1c8ff6b4a10b926c2520e3aa15d>:0 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <e1ccb1c8ff6b4a10b926c2520e3aa15d>:0 
  at TestDriver.RunTests (System.Type type, System.String[] args, TestDriverReporter reporter) [0x003b9] in <e541aee421a44561b3fa0f2b98acb890>:0 
  at TestDriver.RunTests (System.Type type) [0x00001] in <e541aee421a44561b3fa0f2b98acb890>:0 
  at Tests.Main () [0x00001] in <16258fbbedad473992f15c8212374900>:0 

[lambdageek]

https://jenkins.mono-project.com/job/test-mono-pull-request-amd64-fullaot/9017/parsed_console/log.html this is the log for the bad build.

[marek-safar]

@brendanzagaeski could you find out where should this be pointing out now?

[lambdageek]

I think it should be https://docs.microsoft.com/en-us/xamarin/ios/internals/limitations
Edit: See @brendanzagaeski comment below with corrected URL.

[akoeplinger]

There should've been a redirect for this page, e.g. https://developer.xamarin.com/guides/ios/advanced_topics/ redirects to https://docs.microsoft.com/en-us/xamarin/ios/internals/.

[conceptdev]

Added the redirect that takes https://developer.xamarin.com/guides/ios/advanced_topics/limitations/
to https://docs.microsoft.com/xamarin/ios/internals/limitations

[brendanzagaeski]

For a tiny bit of additional background context, it turned out this particular redirect was just unintentionally missing due to a typo.

[lambdageek]

Works great now.

[akoeplinger]

@lambdageek I think we should still update the actual link in the source code.

[brendanzagaeski]

As a little detail note for updating the link in the source code, we can use the locale-agnostic link as in Craig's comment:

https://docs.microsoft.com/xamarin/ios/internals/limitations

This locale-agnostic link redirects to the expected locale-specific version based on the user's environment.